They are still pinching themselves in Milton Keynes, home of the Red Bull Racing team. They have been used to winning races and world championships over the past three seasons – no other team or driver has had a look-in in the drivers’ and constructors’ series since Sebastian Vettel was first crowned in 2010 – but even they were astonished at the ease with which he destroyed opposition from Ferrari and Mercedes at Spa-Francorchamps on Sunday.